#Question id: 11242
#Section 2: Evolution
A disadvantage of sexual reproduction is
#Question id: 4579
#Section 2: Evolution
About which of these did Darwin have a poor understanding?
#Question id: 12265
#Section 1: Ecology
#Question id: 8294
#Section 2: Evolution
The common ancestors of birds and mammals were very early (stem) reptiles, which almost certainly possessed three-chambered hearts (two atria, one ventricle). Birds and mammals, however, are alike in having four-chambered hearts (two atria, two ventricles). The fourchambered hearts of birds and mammals are best described as ________.
#Question id: 10587
#Section 2: Evolution
The above pyramid
Which of the following is not representation of following ecosystem?